Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Retained Earnings [Member]	Treasury Stock, Common [Member]	Accumulated Foreign Currency Adjustment Attributable to Parent [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]
Common Stock, Shares, Outstanding	8,955,930
Common Stock Outstanding, $1 Par Value	$ 9,006,000
Capital in Excess of Par Value	15,623,000
Retained Earnings	77,338,000
Treasury Stock	(1,234,000)
Accumulated Other Comprehensive Income (Loss)	(1,560,000)
Total Stockholders' Equity	99,173,000
Net income	4,146,000	$ 4,146,000
Adjustment for foreign currency translation	675,000			$ 675,000
Stock-based compensation	$ 666,000					$ 666,000
Shares Issued	6,520
Shares Issued, Par Value	$ 0				$ 6,000	(6,000)
Common Stock, Shares, Outstanding	8,962,450
Common Stock Outstanding, $1 Par Value	$ 9,012,000
Capital in Excess of Par Value	16,283,000
Retained Earnings	83,421,000
Treasury Stock	(1,234,000)
Accumulated Other Comprehensive Income (Loss)	(885,000)
Total Stockholders' Equity	106,597,000
Change in accounting principle	$ 1,937,000	1,937,000
Common Stock, Shares, Outstanding	9,043,771
Common Stock Outstanding, $1 Par Value	$ 9,190,000
Capital in Excess of Par Value	18,077,000
Retained Earnings	86,496,000
Treasury Stock	(5,761,000)
Accumulated Other Comprehensive Income (Loss)	(1,000)
Total Stockholders' Equity	108,001,000
Net income	$ 12,533,000	$ 12,533,000
Treasury Stock, Value, Acquired, Cost Method	(47,504)
Treasury Stock, Value, Acquired, Cost Method	$ (1,756,000)		$ (1,756,000)
Adjustment for foreign currency translation	(2,494,000)			$ (2,494,000)
Stock-based compensation	$ 451,000					$ 451,000
Common Stock, Shares, Outstanding	8,996,267
Common Stock Outstanding, $1 Par Value	$ 9,190,000
Capital in Excess of Par Value	18,528,000
Retained Earnings	99,029,000
Treasury Stock	(7,517,000)
Accumulated Other Comprehensive Income (Loss)	(2,495,000)
Total Stockholders' Equity	$ 116,735,000