SEC FILINGS

Seq Description Date Filed View
1 dtss-20180331_10q 03/31/2018
2 dtss-20171231_10q 12/31/2017
3 dtss-20170930_10q 09/30/2017
4 dtss-20170630_10k 10/13/2017
5 dtss-20170331_10q 03/31/2017
6 dtss-20161231_10q 12/31/2016
7 dtss-20160930_10q 09/30/2016
8 dtss-20160630_10q 06/30/2016
9 dtss-20160331_10q 03/31/2016