Note 1. Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Cash, Cash Equivalents and Restricted Cash

	December 31,
	2017	2016	2015
Cash and cash equivalents	$          58,577	$       75,808	$       56,523
Restricted cash included in other long-term assets	8,653	25	25
Cash, cash equivalents and restricted cash	$          67,230	$       75,833	$       56,548

Common Stock and Treasury Stock

	December 31, 2017	December 31, 2016	December 31, 2015
Common stock authorized	2,500,000	2,500,000	2,500,000
Common stock issued	2,142,202	2,142,202	2,142,202
Treasury stock held by the Company	(74,589)	(75,009)	(75,511)
Outstanding shares	2,067,613	2,067,193	2,066,691
Proportional ownership of the Company's
common stock in the investment partnerships	(866,935)	(834,889)	(807,069)
Net outstanding shares for financial reporting purposes	1,200,678	1,232,304	1,259,622

Purchase of Equity Securities

	2017	2016	2015
The Lion Fund, L.P.	-	-	45,305
The Lion Fund II, L.P.	26,679	37,925	616,312
	26,679	37,925	661,617

Summary of restaurant operations revenues

	2017	2016	2015
Net sales	$        781,856	$        795,322	$        799,660
Franchise royalties and fees	20,773	18,794	16,428
Other	4,524	3,798	3,650
	$        807,153	$        817,914	$        819,738

Schedule of Weighted Average Number of Shares

	2017	2016	2015
Basic earnings per share:
Weighted average common shares	1,227,166	1,222,261	1,556,039
Diluted earnings per share:
Weighted average common shares	1,227,166	1,222,261	1,556,039
Dilutive effect of stock awards	937	1,355	-
Weighted average common and incremental shares	1,228,103	1,223,616	1,556,039
Anti-dilutive stock awards excluded from the calculation
of earning per share	-	-	5,218