INVENTORIES (Details) - USD ($)	Mar. 31, 2019	Jun. 30, 2018
Total inventories, net of reserves [Abstract]
Raw materials	$ 4,656,868	$ 5,083,436
Work-in-process	11,055,488	10,659,786
Finished goods	18,689,812	17,483,773
Finished goods on consignment	1,517,104	523,971
Total supplies inventory	127,968	45,572
Less: inventory reserves	(2,345,000)	(1,968,000)
Total inventory	33,702,240	31,828,538
Short-term portion	11,376,031	10,979,891
Long-term portion	22,326,209	20,848,647
Inventories issued to active production	2,170,000	2,450,000
Inventory of net jewelry	9,690,000	7,790,000
Inventory of net loose jewels	23,880,000	24,000,000
Inventory reserve for obsolescence	1,680,000	1,300,000
Lower of cost or market value	1,640,000	1,290,000
Carrying value of inventory reserve for obsolescence of finished jewelry	39,000	7,000
Inventory rework reserve for recut	481,000	534,000
Inventory reserve for recut	481,000	418,000
Inventory reserve for shrinkage of finished jewelry on repairs	0	116,000
Inventory reserve for shrinkage	187,000	136,000
Inventory reserve for shrinkage of loose jewels	44,000	48,000
Inventory reserve for shrinkage of finished jewelry	143,000	88,000
Shrinkage reserve for finished goods on consignment	24,000	18,000
Inventory reserve for shrinkage of loose jewels on consignment	10,000	11,000
Inventory reserve for shrinkage of finished jewelry on consignment	14,000	7,000
Finished Jewelry [Member]
Total inventories, net of reserves [Abstract]
Raw materials	687,848	595,649
Work-in-process	1,137,519	1,196,268
Finished goods	6,577,000	5,517,951
Finished goods on consignment	1,287,508	476,648
Total finished jewelry and loose jewels	9,689,875	7,786,516
Loose Jewels [Member]
Total inventories, net of reserves [Abstract]
Raw materials	3,969,020	4,487,787
Work-in-process	9,917,967	9,463,518
Finished goods	9,791,814	10,015,822
Finished goods on consignment	205,596	29,323
Total finished jewelry and loose jewels	$ 23,884,397	$ 23,996,450