7. Taxable Income: Reconciliation of Financial Statement Net Income to the Tax Return Income (Details) - USD ($)	3 Months Ended			12 Months Ended
	Mar. 30, 2018	Mar. 30, 2017	Mar. 30, 2016	Mar. 30, 2018	Dec. 31, 2017	Mar. 30, 2017	Dec. 31, 2016
Details
NET INCOME				$ 827,932		$ 1,227,862
Add (less) net transactions occurring between Jan 1 and Mar 30	$ 15,942	$ 21,683	$ 306,378
Adjusted financial statement net income (loss) for the years ended December 31, 2017 and 2016					$ 822,191		$ 943,167
Management Fees deductible for tax purposes when paid					(741,762)		63,326
Equity in loss of investment in local partnerships					(20,239)		(110,243)
Gain on sale of limited partner interests/local partnership properties					163,007		(147,589)
Other differences					23		124
Tax return income for the years ended December 31, 2017 and 2016					$ 223,220		$ 748,785