Consolidated Balance Sheets (USD $)	Jan. 31, 2013		Jan. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 8,875,000	[1]	$ 4,335,000	[2]
Investments	3,410,000		3,318,000
Accounts receivable, less allowance for doubtful accounts of $847,000 at January 31, 2013 and $671,000 at January 31, 2012	33,573,000		33,480,000
Income taxes receivable, net	639,000		2,691,000
Unbilled receivables	8,073,000		1,295,000
Inventories, net	446,000		4,247,000
Deferred income taxes	4,959,000		3,900,000
Prepaid expenses	2,524,000		2,964,000
Total current assets	62,499,000		56,230,000
Property, plant and equipment, at cost [Abstract]
Land	1,449,000		1,449,000
Buildings	13,115,000		7,748,000
Machinery and equipment	116,160,000		111,454,000
Leasehold improvements	17,140,000		16,480,000
Property, plant and equipment, at cost	147,864,000		137,131,000
Less: accumulated depreciation	(85,586,000)		(78,979,000)
Net property, plant and equipment	62,278,000		58,152,000
Goodwill	21,799,000		19,444,000
Intangible assets, net	16,149,000		16,986,000
Other assets	1,904,000		1,891,000
TOTAL ASSETS	164,629,000		152,703,000
CURRENT LIABILITIES:
Accounts payable	7,473,000		10,708,000
Accrued expenses	13,142,000		8,129,000
Deferred income	2,974,000		2,017,000
Current installments of long-term debt	5,572,000		4,478,000
Total current liabilities	29,161,000		25,332,000
Long-term debt, excluding current installments	48,379,000		45,710,000
Deferred income taxes	16,461,000		13,490,000
Deferred compensation	1,794,000		1,672,000
Other long-term liabilities	382,000		1,800,000
Commitments and contingencies
SHAREHOLDERS' EQUITY:
Preferred stock, no par value, 2,000,000 shares authorized; none issued	0		0
Common stock, no par value. Authorized, 20,000,000 shares; issued and outstanding, 11,475,000 as of January 31, 2013 and 11,306,000 as of January 31, 2012	29,053,000		28,654,000
Retained earnings	39,296,000		34,852,000
Accumulated other comprehensive loss	(142,000)		(188,000)
Total shareholders' equity	68,207,000		63,318,000
Noncontrolling interests	245,000		1,381,000
Total equity	68,452,000		64,699,000
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 164,629,000		$ 152,703,000

[1] Cash and cash equivalents at January 31, 2013 includes cash from discontinued operations of $5,000.

[2] Cash and cash equivalents at January 31, 2012 includes cash from discontinued operations of $15,000.