Note 16 - Segment Information (Tables)

12 Months Ended

Nov. 30, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Twelve Months Ended November 30, 2013
	Agricultural Products		Pressurized Vessels			Modular Buildings		Tools		Consolidated
Revenue from external customers	$	28,199,000	$	2,137,000		$	3,240,000	$	651,000	$	34,227,000
Gross Profit		6,508,000		234,000			1,441,000		183,000	$	8,366,000
Operating Expense		5,275,000		360,000			769,000		145,000	$	6,549,000
Income (loss) from operations		1,234,000		(127,000	)		672,000		38,000	$	1,817,000
Income (loss) before tax		1,718,000		(221,000	)		680,000		29,000	$	2,206,000
Total Assets		23,279,000		2,758,000			3,092,000		3,639,000	$	32,768,000
Capital expenditures		776,000		41,000			20,000		5,000	$	842,000
Depreciation & Amortization		413,000		105,000			158,000		28,000	$	704,000

	Twelve Months Ended November 30, 2012
	Agricultural Products		Pressurized Vessels			Modular Buildings		Tools		Consolidated
Revenue from external customers	$	24,720,000	$	2,092,000		$	9,645,000	$	-	$	36,457,000
Gross Profit		6,945,000		146,000			2,941,000		-	$	10,032,000
Operating Expense		4,572,000		273,000			859,000		-	$	5,704,000
Income (loss) from operations		2,373,000		(127,000	)		2,082,000		-	$	4,328,000
Income (loss) before tax		2,326,000		(355,000	)		2,017,000		-	$	3,988,000
Total Assets		24,155,000		2,846,000			4,228,000		-	$	31,229,000
Capital expenditures		753,000		14,000			33,000		-	$	800,000
Depreciation & Amortization		531,000		113,000			209,000		-	$	853,000