Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Cash flows from operating activities:
Net Income (Loss) Attributable to Parent	$ 172,000	$ 84,000
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities:
Stock compensation cost amortized	4,000	4,000
Depreciation	94,000	86,000
Deferred income taxes	107,000	56,000
Loss on Impairment	0	59,000
Change in value of stock appreciation rights	93,000	7,000
Trade receivables	355,000	(128,000)
Inventories	(81,000)	(110,000)
Prepaid expenses and other assets	(1,000)	(41,000)
Trade accounts payable	252,000	16,000
Accrued liabilities	(212,000)	(40,000)
Customer deposits	(566,000)	265,000
Net cash provided by (used in) operating activities	217,000	258,000
Cash flows from investing activities:
Capital expenditures	(58,000)	(101,000)
Net cash used in investing activities	(58,000)	(101,000)
Cash flows from financing activities:
Principal payments on long-term debt	(28,000)	(26,000)
Payments on capital lease obligations	(7,000)	(11,000)
Net cash provided by (used in) financing activities	(35,000)	(37,000)
Net increase (decrease) in cash	124,000	120,000
Cash, beginning of year	1,593,000	308,000
Cash, end of year		428,000
Interest	9,000	11,000
Income taxes	0	0
Capital expenditure	0	0
Proceeds from capital lease	$ 0	$ 0