CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $)	Jan. 31, 2012	Apr. 30, 2011
CURRENT ASSETS:
Cash	$ 6,425,262	$ 8,475,525
Accounts receivable (net of allowance for doubtful accounts of $73,886 at January 31, 2012 and $146,502 at April 30, 2011)	3,999,797	2,127,865
Inventories (net of obsolete of $1,075,437 at January 31, 2012 and $1,792,681 at April 30, 2011)
Raw materials	5,559,777	5,202,476
Work in process	1,055,738	1,088,235
Finished goods	702,779	723,972
Total Inventory	7,318,294	7,014,683
Prepaid expenses and other current assets	755,346	964,117
Total current assets	18,498,699	18,582,190
PROPERTY, PLANT AND EQUIPMENT:
Land and building	3,995,632	3,142,486
Aircraft	6,131,859	5,951,859
Machinery and equipment	3,687,588	3,497,763
Office furniture and fixtures	1,031,132	1,024,612
Leasehold improvements	31,389	31,389
Property, plant and equipment, gross	14,877,600	13,648,109
Accumulated depreciation	(6,104,930)	(4,769,307)
Property, plant and equipment, net	8,772,670	8,878,802
SUPPLEMENTAL TYPE CERTIFICATES (net of amortization of $2,518,252 at January 31, 2012 and $2,464,183 at April 30, 2011)	1,642,133	1,696,202
OTHER ASSETS:
Deferred tax asset	1,226,000	1,226,000
Other assets (net of accumulated amortization of $451,287 at January 31, 2012 and $292,465 at April 30, 2011)	9,298,840	1,774,500
Total other assets	10,524,840	3,000,500
Total Assets	39,438,342	32,157,694
CURRENT LIABILITIES:
Line of Credit	616,707	91,799
Current maturities of long-term debt and capital lease obligations	2,375,057	1,807,490
Accounts payable	1,517,649	2,093,992
Customer deposits	576,850	1,091,043
Gaming facility mandated payment	1,073,326	2,028,015
Compensation and compensated absences	1,130,412	1,605,283
Accrued income tax	54,878	252,623
Other	286,136	221,584
Total current liabilities	7,631,015	9,191,829
LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS, NET OF CURRENT MATURITIES:	10,832,307	4,940,402
Total liabilities	18,463,322	14,132,231
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, par value $.01:Authorized 100,000,000 shares issued and outstanding 57,194,262 shares at January 31, 2012 and April 30, 2011	571,943	571,943
Common stock, owed but not issued 278,573 shares at January 31, 2012 and at April 30, 2011	2,786	2,786
Capital contributed in excess of par	12,263,878	11,911,838
Treasury stock at cost, 600,000 shares	(732,000)	(732,000)
Retained Earnings	7,405,953	6,271,292
Total stockholders' equity Butler National Corporation	19,512,560	18,025,859
Non-controlling Interest in BHCMC, LLC	1,462,460	(396)
Total stockholders' equity	20,975,020	18,025,463
Total Liabilities and Stockholders' Equity	$ 39,438,342	$ 32,157,694