 One internal control that we have is that we're using the zero software allowing us to be in balance, meaning that the assets equal the liabilities plus the equity and the software in essence forces that to happen. That provides a great level of confidence much more so than doing the books by hand and just having them kind of not tying out in terms of assets liabilities and equities. And then second to that is really the bank reconciliation. So if you're not reconciling the bank, then you have a much lower kind of verification that your numbers not just cash, but all of the transactions, all of your accounts are accurate and reconcilations are something that both small businesses and large businesses do.